PALEOMAGNETISM AND OROGENIC HISTORY OF THE BOTWOOD GROUP AND MOUNT PEYTON BATHOLITH, CENTRAL MOBILE BELT, NEWFOUNDLAND

This is the first paleomagnetic study from the Paleozoic Botwood Central Zone of Newfoundland. Two Lower Paleozoic rock units were sampled: the Botwood Group (rhyolite and red sandstone) at 16 sites and the Mount Peyton Batholith (dioritic and granitic phases) at 12 sites. Detailed demagnetization techniques (thermal, chemical, and alternating field) were used to separate the normal and reversed directions in composite magnetizations; with a mean direction of 194 degree , plus 28 degree , the pole (100 degree E, 25 degree N) obtained after tilt correction is related to a Silurian age. Two magnetizations were found in the Mount Peyton Batholith.